Create from usage: Fixed case for multi-declaration in a for-loop.

idea/testData/quickfix/createFromUsage/iterator/afterCreateIteratorFromUsage3.kt

@@ -0,0 +1,21 @@
+// "Create function 'next' from usage" "true"
+class FooIterator<T> {
+    fun hasNext(): Boolean { return false }
+    fun next(): Any {
+        throw UnsupportedOperationException("not implemented") //To change body of created functions use File | Settings | File Templates.
+    }
+}
+class Foo<T> {
+    fun iterator(): FooIterator<String> {
+        throw UnsupportedOperationException("not implemented")
+    }
+}
+fun Any.component1(): Int {
+    return 0
+}
+fun Any.component2(): Int {
+    return 0
+}
+fun foo() {
+    for ((i: Int, j: Int) in Foo<Int>()) { }
+}